Automatic machine for profile-turning.



K. IUNG.

AUTOMATIC MACHINE FOR PROFILE TURNING.

APPLICATION FILED IULY 22, 1914.

Patented Sept. 7, 1915.

2 SHEETS-SHEET I COLUMBIA PLANOGRAPH co., wAsHlNGToN. D. c,

K. JUNG.

AUTOMATIC MACHINE FOR PROFILE TURNING.

APPLICATION FILED IuLY 22. 1914.

1,152,641. 'Patented sept. 7,v 1915.

2 SHEETS-SHEET 2.

kwa/mha COLUMBIA PLANOURAPH C02.WASHlNuTON. D. c.

UNITED STATES rA'rENr oFFicE. l'

KARL JUNG, 0F BERLIN, GERMANY, AssIGNoR To 'THE` GENERAL coMPosINGvColvi- IPANY, GESELLSCHAFT MIT HAFTUNG, 0F BERLIN, GERMANY, A

ooaPoRATIoN'.

l Specification of Letters Patent;

Applicationfiled'11115'7 22. 1914. Serial N0. 852,478.

To all whom t may concern:

Be i known that I, KARL JUNG, manager, a subject ofthe German Emperor,and residing at 58/59 Grossbeerenstrasse, Berlin, State of Prussia andGerman Empire, have invented certain new and useful Improve* ments in orRelating to Automatic'Machines for Profile-Turning, of Awhichthefollowing is a specification.

In automatic machines for profile turning, it isnecessary, in additionto moving tools in the transverse direction which are arranged on thetraverse slide rest, to feed other tools Ain the axialdirection towardthe work, for instance for boring and screw cutting. For that reason ithas beennecessary in such machines to lengthenthe bed Vso that it ispossible to arrange 'the' tool carrying and controlling mechanism, infront of the work spindle. This resulted in the drawback that theshavings could not fall freely from the machine, but remained on vthebed, and moreover access to the work was rendered moredifficult. l

The invention obviates this drawback byY arranging the mechanism forcarrying and controlling the tools to be brought toward the workfrom thefront, above the work spindle, so that the whole space in front of, andbelow the work is free, and the shavings can fall freely from themachine which is rendered completely accessible.

A construction according to this invention is illustrated in theaccompanying drawing in which- Figure 1 is a section through anautomatic device and Fig. 2 is a detail of the same, in plan. Fig. 3 isa part of Fig. 1, it shows, however, a modified construction of the toolholder. Fig. 4 is a section on line 4 4, Fig. 3.

In the drawing, the work spindle a carries on the right hand side thechuck for fixing the work. The drive is effected by means of the pulleyb. The spindle a drives, by means of worm wheels c, toothed wheels Z andworm gear e, the control spindle 7, which is provided in the knownmanner with cam disks g for controlling the traverse-slides L, as wellas with other cams for operating the feed of material, etc.

The tool which is fed toward the work from the front, for example'adrill as in the construction illustrated in Fig. 1, is mounted inaseparate support or bracket z', secured to the lframe of thefmachineabove the work spindle a. In order to makepossible an ad- KJustmentrelatively to-the work spindle'a,

the support z' is made in ltwo parts, and the part 7c is adjustable inthe axial direction relatively to the stationary or fixed part e'. Ifseveral tools which become operative one after another are used, forinstance a drill,

a rimer, a screwcutter, etc., the partle is replaced by a toolholder z(Figs. 3 and 4) pivoted about the part t" and' arranged like a capstanhead or turret.

The driving of the rspindle m, that is to say, its movement inthe axialdirection to- Ward the work, is controlled by a cam disk nv whichacts atasuitable moment on a lever Aa mounted inla fork pand moving aconnectingrod r by means ofa member q. The

said connecting rodfisformedat its free end as a rack and engageswith a'gear wheel s which also engageswith an upward connecting rod t. Theupper end of the latter rod t engages again with a rack-shaped end ofanother connecting rod v, the free end of which is pivoted to the leverfw. As the rod t must be mounted laterally in order to be able to passin front of the spindle a, the gear wheels s and a must be made ofcorresponding width, or each two such wheels must be arranged on a shortcross spindle mounted in the machine.

The lever w is mounted on the part lc so as to rotate about the pin m,and its free end is pivoted to the spindle m, so that when the rod rmoves to the left under the action of the cam disk n, the rod t is moveddownward, the rod o to the left, and consequently the spindle m towardthe work, in order to bring its tool into the working position. Thereturn of the parts to the inoperative position is effected by thespring y.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to beperformed, I declare thatwhat I claim is l. In an automatic machine for profile turning incombination a bed, a Work spindle arranged above the bed, tools to befed from the front side in the axial direction toward the work and asupport for these tools said support being arranged above the the frontend of the spindle, thereby keep ing free the space in front of andbelow the spindle for the purpose to allow the shavings to fall freely.

2. In an automatic machine for profileturning in combination a/bed, awork spin dle arranged above the bed, tools to be fed from the frontside in the axial direction toward the work, a support and a controllingmechanism for these tools said support and controlling mechanism beingarranged in part above the work spindle and said bed and beingsubstantially in the same vertical planewth the front end of thespindle, thereby keeping free the space in front of and below thespindle for the purpose to allow the shavings to fall freely.

3. In an automatic machine for profile turning, in combination, a bed, awork spindle arranged above the bed, tools to be fed from the front sidein the axial direction toward the work, means for carrying said toolsarranged above the work spindle, and means for controlling said tools,said bed ending substantially in the same vertical plane with the frontend of the spindle and said last mentioned means, thereby keeping freethe space in front of and below the spindle for the purpose of allowingthe shavings to fall freely.

4. In an automatic machine forv profile turning in combination a bed, awork spindle, tools to be fed from the front side in the axialdirectiontoward the work, a support for said tools arranged above thework spindleand a bearing on which the said support is mounted, said support beinglongitudinally 'adjustable on said bearing.

5.. In an automatic machine Jfor profile turning in combination a bed, awork spindle, tools to be fed from the front side in the axial directiontoward the work, a support for said tools arranged abovey the workSpindle, a bearing, on which the said support is mounted and means forcontrolling said tools said means being partly guided by said bearing.

6. In an automatic machine for profile turning'in combination a bed, aworkspindle, tools to be fed fromthe front side in the axial directiontoward the work, a support for said tools arranged above the workspindle, a bearing, on which the said support is mounted and means forcontrolling said tools said support being longitudinally adjustable onsaid bearing and said bearing guiding partly said means substantially asdescribed and for the purpose specified.

In testimony whereof I have aflixed my signature in presence of twowitnesses.

KARL JUNG.

Witnesses:

WOLDEMAR HAUPT, HENRY I-IAsrER.

Copies of thisipatent may be obtained for ive cents each, by addressingthe Commissioner of Patents,

Washington, D. C. f

